US3624059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and catalyst for the polymerization and copolymerization of olefins
Assignee: Solvay SA
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Filing: 1965-02-03
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Granted: 1971-11-30
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Expires: 1985-02-03
Abstract
Abstract A method of polymerizing and copolymerizing olefins with a novel catalyst comprising (a) the reaction product of an inorganic compound of a polyvalent metal having a valence of at least three, e.g., TiC14, and a solid, bivalent metal hydroxylated inorganic phosphate, e.g., Ca5(PO4)3OH, or hydroxychloride, e.g., Mg(OH)C1, (b) a metal, a hydride, or an organometallic compound of metals of Groups IVB , VB and VIB, e.g., Sn(C4H9)4, and (c) a Group IIIB or VB halide, e.g., A1C13.
Inventors
- 👤 Felix Bloyaert
- 👤 Andre Delbouille
- 👤 Jacques Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:10
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
14 words
A catalyst according to claim 1, in which said component (c) is aluminum chloride.
Claim 2
Dependent Claim
64 words
A polymerization process which comprises contacting under polymerization conditions at least one olefin having two to eight carbon atoms with catalyst which forms on mixing components comprising (a) the reaction product of titanium tetrachloride, with a solid support which is magnesium hydroxychloride, (b) Sn(R)4 R being alkyl, cycloalkyl, aryl or combinations thereof containing up to 8 carbon atoms, and (c) a halide of aluminum.
Claim 3
Dependent Claim
15 words
A polymerization process according to claim 3, in which said component (c) is aluminum chloride.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |